# DAC cable CBO QSFP28-DAC-5M 5 m passive copper direct attach for QSFP28 ports

**URL:** https://aio.lv/en/product--blueoptics-qsfp28-dac-5m-bc-bl--4466874
**Data updated:** 2026-02-25 16:32 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** BlueOptics
**Manufacturer code:** QSFP28-DAC-5M-BC-BL
**EAN:** 4063232102306
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 212.49 €
**Prices and availability valid until:** 2026-08-14 23:59
**Price without VAT (21%):** 175.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blueoptics-qsfp28-dac-5m-bc-bl--4466874

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.08.2026 | free |
| Pickup points | 18.08.2026 | 1.89 EUR |
| Courier delivery to door | 18.08.2026 | 4.99 EUR |

## Summary description

Passive copper Direct Attach (DAC) cable CBO QSFP28-DAC-5M, 5 meters, designed for QSFP28 ports. Provides a fixed, low-latency, energy-efficient connection for short-reach high-speed networking and switch-to-switch or switch-to-server links. Ideal for data center topologies where a cost-effective, reliable 5 m QSFP28 copper connection is required.

## Long description

The BlueOptics DAC cable CBO QSFP28-DAC-5M is a 5 m passive copper direct attach cable engineered for QSFP28 ports. It offers a fixed connection for short-reach, high-speed links such as switch-to-switch or switch-to-server interconnects. Designed for environments that require low latency and energy-efficient cabling, this 5 metre QSFP28 copper assembly supports dense data center topologies where a cost-effective and reliable physical link is needed.
Advantages
This passive DAC cable delivers low latency and minimal signal conversion overhead, reducing power consumption compared with active optical modules. The integrated QSFP28 connectors simplify installation by providing a pre-assembled, robust copper link without additional transceivers. The 5 m length balances reach and rack flexibility for typical data center layouts, and the cable’s passive design reduces heat and operational complexity.
Suitable for
Switch-to-switch uplinks in top-of-rack or spine-leaf architectures
Switch-to-server high-speed connections within racks or adjacent racks
Short-reach 100G Ethernet links where low latency and energy efficiency are priorities
Data center deployments seeking cost-effective physical interconnects for QSFP28 ports
Key specifications
Connector type: QSFP28 to QSFP28 passive copper assembly
Cable length: 5 metres
Transfer rate: supports 100G-class QSFP28 links (short-reach application)
Design: direct attach copper (passive), fixed-terminated
Typical use: short-reach interconnects inside racks and between adjacent racks
Thermal and power: passive operation with lower power draw compared to active optical solutions
How to use
Install the DAC cable by inserting each QSFP28 connector into compatible QSFP28 ports on network switches or servers until the connector latch engages. Ensure both devices support passive copper DAC modules and that the port settings match the intended 100G link speed and lane configuration. Route the cable to avoid sharp bends and interference with other equipment, maintain proper airflow in the rack, and secure the cable with available cable management to prevent strain on the connectors. If the link does not rise, verify port compatibility, firmware versions and module support in the connected devices.
Usage recommendations
Use this 5 m passive QSFP28 DAC for short-distance connections within the same rack or neighboring racks. Prefer passive copper assemblies for deployments where power efficiency and low latency are required and where the reach does not exceed the specified length. Confirm device compatibility and firmware support for passive DACs before installation to ensure link stability.

## FAQ

### How much does the DAC cable CBO QSFP28-DAC-5M 5 m cost, and is it available for purchase?

The price is 212.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 353 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All BlueOptics products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BlueOptics service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4466874/59879631_large.webp